Ziff has done some great work and now released

2.0.0 ALPHA
This alpha adds in the changes for Cataclysm up to beta build 12857. This initial alpha does not include the GUI, just the command line version.

Added level85.h with approximations of 85 combat ratings, spell base damage, and coefficients for known spells. Fire Elemental, Earth Elemental, and Feral Spirits were not updated.
Changed mana regen to a flat 1171 mp5, as in combat regen is not affected by int or spirit anymore for non-healers.
Added in Mastery rating
Changed how Primary Talents are described in the config file to reduce the chance of conflicts
Changed how spell damage multipliers are applied to be more dynamic in preparation of having dynamic mastery buffs
Added Unleashed Elements into the standard rotation, as UE
Updated all buff and debuffs and all enhance relevant talents except the Unleashed Elements aspect of Elemental Weapons.
Show output for Searing Flames and Improved Lava Lash, including uptimes and damage.
Updated the config file to match with above changes.
Added in the Unleashed Weapon effects for Windfury and Flametongue.
Added initial version of Unleashed Elements.
Updated to Boost 1.44.0
Also fixed a problem with the flurry haste effect not getting cleared if it was active at the end of a combat run
Removed the "Cast LvB only if FS dots left" option for Work Item # 7089


You can download this ALPHA version from http://enhsim.codeplex.com Please use the "Issue tracker" ticket system at that website to report any bugs you find. The more ppl test the quicker we can get the bugs fixed and have an accurate sim for Cata.